tag:blogger.com,1999:blog-13887692.post7115681817468602482..comments2019-01-17T02:00:06.832-05:00Comments on Cozy Beehive: Matt Appleman On Carbon FiberRon Georgehttp://www.blogger.com/profile/18394865788996482667noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-13887692.post-10118256024459456862010-11-20T02:41:36.210-05:002010-11-20T02:41:36.210-05:00There are two main ways custom bike builders diffe...There are two main ways custom bike builders differ from mass production:<br />1- Construction methods vary greatly, a book could be written on this subject! Custom builders have flexible processes versus mass production uses high volume and expensive tooling.<br /><br />2- Service and Design! Custom builders speak directly to and design the bike specifically for you... the customer! You work WITH the builder of the bike and have input on how the bike will look, feel, and ride. Good luck discussing your frame design with the engineer, designer, manufacturing technician, and painter in a mass production environment.Matt Applemanhttp://www.applemanbicycles.comnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-19816884323458759712010-11-16T10:43:13.766-05:002010-11-16T10:43:13.766-05:00Cool tech stuff.
From a rider&#39;s perspective...Cool tech stuff. <br /><br />From a rider&#39;s perspective I am a fan of carbon fiber. I became aware of some of it&#39;s properties when I switched my steel fork to a carbon on my steel Waterford bicycle. The difference in road shock absorption was amazing!<br /><br />@Matt Appleman: The trend with bike design is to go light and have big tube dimensions. I understand this, but also think it would be nice if there was also a choice for more aerodynamic bikes. I feel aerodynamics is far more important than weight for performance (racing).David Hendersonhttps://www.blogger.com/profile/17181661646638612881noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-34644674161179917392010-11-11T22:41:16.978-05:002010-11-11T22:41:16.978-05:00@Anonymous
Do you realize you&#39;ve just specifi...@Anonymous<br /><br />Do you realize you&#39;ve just specified yourself into being wrong?<br /><br />Yes, resistance to impact and other &quot;higher&quot; strain rate phenomena is best described by toughness and dynamic toughness values.<br /><br />However lower toughness materials (like glass type ceramics) are traditionally described as being &quot;brittle materials&quot; in many sources.<br /><br />To make matters worse, the act of increasing the strain capabilities and thus energy absorptive abilities of brittle materials is called toughening.<br /><br />Also, there are several engineering strength parameters, several of which go well into the yield zone of a material and deal with stress until rupture. Ultimate tensile strength for one.Jasonhttps://www.blogger.com/profile/00403695097675640092noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-11628801588035107082010-11-10T13:59:43.444-05:002010-11-10T13:59:43.444-05:00Thanks for the tech talk but speaking to us that h...Thanks for the tech talk but speaking to us that have no engineering background. I was wondering if you could expand on djconnel&#39;s question of how a custom bike builder differs from mass production?<br />Thanks!Nickhttps://www.blogger.com/profile/06693411020427237859noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-20621962739380908772010-11-08T17:28:17.119-05:002010-11-08T17:28:17.119-05:00It&#39;s pretty amazing that Appleman can go from ...It&#39;s pretty amazing that Appleman can go from building turbines to bike frames! My buddy is a avid biker -- I definiently share this article with him. Thanks!<br />----------------------------------------------------<br />Rachel<br /><a href="http://www.paydayadvance.net/payday-loan-by-city/Texas/Austin" rel="nofollow">Austin Cash Advance</a> BloggerRachelhttps://www.blogger.com/profile/01461356388249344729noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-91198696609371503702010-11-07T16:17:27.399-05:002010-11-07T16:17:27.399-05:00Chris -&gt; Thank you for the correction. My mist...Chris -&gt; Thank you for the correction. My mistake for each use of iso and anisotropic materials. Isotropic materials have equal properties in all directions (metals). Anisotropic materials have unique strengths in different directions.<br /><br />Anonymous -&gt; You are very correct in your definitions of material properties. I will add, that the term &quot;toughness&quot; has many definitions depending on the industry and test method used to measure it. In composites, toughness can be a measurement of material elongation, Izod/Charpy impact strength, and compression strength after impact, and many more. <br /><br />Thank you both for your correction &amp; contribution.<br /><br />-Matt ApplemanMatt Applemanhttp://www.applemanbicycles.comnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-52646449593570006982010-11-05T21:05:10.389-04:002010-11-05T21:05:10.389-04:00I&#39;m not sure I appreciate how Matt uses the te...I&#39;m not sure I appreciate how Matt uses the terms he does, but maybe he&#39;s trying to speak to the layman.<br />The failure mode of carbon fiber reinforced polymers is a brittle failure. The ability to absorb stress without permanent deformation is strength, and the ability to resist fracture is toughness - also can be referred to as the ability to &quot;absorb energy&quot;. <br />Matt&#39;s example of a carbon bicycle failing from sudden impact forces is based on the strain rate, not because the material is &quot;brittle&quot;. <br /><br />The use of the correct terms to describe mechanical behavior is helpful.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-67853383774282994412010-11-04T12:42:49.471-04:002010-11-04T12:42:49.471-04:00I enjoyed reading the interview and it had a lot o...I enjoyed reading the interview and it had a lot of great information. However, it appears that Matt flipped the definitions of isotropic vs anisotropic materials. Isotropic materials have the same properties in all directions, whereas anisotropic materials have properties that vary with direction. No big deal, I just wanted to point out the mistake.Chrishttps://www.blogger.com/profile/07085478006923767124noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-45008571289869912192010-10-31T13:30:10.938-04:002010-10-31T13:30:10.938-04:00Great interview!Great interview!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-41301250736808194282010-10-30T01:31:47.495-04:002010-10-30T01:31:47.495-04:00-&gt; parrabuddy, sounds like you have quite the s...-&gt; parrabuddy, sounds like you have quite the seatpost problem! Sometimes galvanic corrosion occurs between carbon fiber and aluminum. This corrosion could effectively bond the post into the frame. If the post is indeed epoxied in... the only way to remove it would be to machine out the post...not your standard procedure! <br /><br />-&gt;djconnel, you have a loaded question! With regard to standard versus custom geometry ... the manufacturing methods vary drastically. Custom builders need to be flexible in their manufacturing process where major manufacturers don&#39;t. One benefit to custom is you get to communicate directly with the designer/builder ...good luck finding the builder(s) of mass produced bikes.<br /><br />-&gt;all, feel free to contact me through my website!Matt Applemanhttp://www.applemanbicycles.comnoreply@blogger.comtag:blogger.com,1999:blog-13887692.post-24909519442057799772010-10-29T08:17:46.760-04:002010-10-29T08:17:46.760-04:00P.S. On that previous question, it seems to me car...P.S. On that previous question, it seems to me carbon fiber is held together with epoxy, so removing an epoxies seat post would be an issue. Could be post be cut and capped with a seat mast, like <a href="http://www.ritcheylogic.com/dyn_prodfamily.php?k=299426" rel="nofollow">Ritchey&#39;s</a>, or if that&#39;s too heavy, <a href="http://bike.com/woodman-it-ti-head-woodman-components-seat-posts" rel="nofollow">Woodman&#39;s</a>?djconnelhttps://www.blogger.com/profile/01484858820878605035noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-40972267708777502292010-10-29T08:09:31.806-04:002010-10-29T08:09:31.806-04:00Good stuff!
I&#39;d love to read what he says abo...Good stuff!<br /><br />I&#39;d love to read what he says about hand-built versus mass-produced, custom versus stock, ride quality versus stiffness versus mass, and reality versus marketing on trends in carbon frame design (BB30, tapered head tubes, ultra-thin seat stays, ISPs), and even on the advantage of carbon over steel or Al other than the obvious weight number (and versus Al, the difference is only a few hundred grams at most).djconnelhttps://www.blogger.com/profile/01484858820878605035noreply@blogger.comtag:blogger.com,1999:blog-13887692.post-17231656594450517232010-10-29T07:39:12.075-04:002010-10-29T07:39:12.075-04:00Been given a &quot;Fuji SL 1 Carbon frame with the...Been given a &quot;Fuji SL 1 Carbon frame with the &quot;Ritchey Carbon seat post epoxied into it!<br /><br />How do i break the seal without damaging the frame?<br /><br />i am 81cm but at moment the seat post only reaches 74cm, so need to solve problem to put the frame to useparrabuddyhttps://www.blogger.com/profile/10045948860442711266noreply@blogger.com